It took way more than it should have. The service department bent the oil pan while fixing the original leak and caused another leak from the pan.Good to know. Was it an easy fix? how many hours did it entail?
The technician first changed the rings but that didn't pass dealer's own overnight test. So they changed the entire switch (see attached for work log).I recently found some drips on the floor under my 2013 Boxster S. Bottom of the sump was wet, similar to the pics posted by the OP. Traced the leak to the flange of the oil pressure control valve. So most probably the same issue. Question to ratherBeDriving, do you know if the control valve itself was leaking (through the electrical connector?) or were it the O-rings? Looking at the workshop manual it does not seem to be a very difficult procedure to replace the solenoid, only draining the coolant seems a hassle, hope that part can be skipped.